Results – Spectra Precision Survey Pro v3.80 Recon iPAQ Reference Manual User Manual
Page 212
![background image](/manuals/365118/212/background.png)
Survey Pro Reference Manual
R-206
Results
Tangent In
: the tangent direction entering the spiral at the TS or CS.
Tangent Out
: the tangent direction exiting the spiral at the SC or ST.
X of Throw
: is the distance along the tangent where a perpendicular
line intersects with the radius point.
Y of Throw
: is the minimum distance between the tangent and the
extended circular curve.
X
: is the distance from the TS to the SC along the tangent.
Y
: is distance from the SC to the tangent.
Delta
: is the angle between the tangent, and the line between the PI
and SC.